v0.56.3 released

We’ve fixed an important bug that a few users were hitting with unresponsive OSDs and internal heartbeat timeouts. This, along with a range of less critical fixes, was sufficient to justify another point release. Any production users should upgrade.

Notable changes include:

osd: flush peering work queue prior to start

osd: persist osdmap epoch for idle PGs

osd: fix and simplify connection handling for heartbeats

osd: avoid crash on invalid admin command

mon: fix rare races with monitor elections and commands

mon: enforce that OSD reweights be between 0 and 1 (NOTE: not CRUSH weights)